The Lyric also has a built-in camera, and can snap a picture when you arm or disarm. I can see some utility in that, but the photos of me are far from acceptable. The angle is horrid and I would rather never lay eyes on them. That said-- my point here is know what your alarm does if you value your privacy.
Check the settings on your computers.
Windows 10 (and other OS) have built in listening "helpers". You can turn that off, but the system will still offer it every chance it gets.
Check the settings on your smart phone.
This is tricky-- I have set mine to NOT listen, yet tapping on the microphone symbol (located near the search bars) can activate the device to listen anyway. When I first got it, I loved the convenience of telling my phone to navigate to XXX place, and have it accurately do so-- but it rarely did it without me having to tap or look at it, so I'd have to pull over anyway. Once I deactivated it, my expectations were lower and I knew I had to manually enter the address each time. It took a few seconds prior to embarking on my journey, but it worked way better. I occasionally wish I could say "ok Google now" and start a search or settle a dispute instantly, but I think I am better off for having it deactivated.
There are apps that ask for microphone permissions. (and camera permissions)
You may have chosen to install them, and they may be listening, even when you deactivate the voice activated search feature. I have no solution for this other than to uninstall the apps. If they are useful enough, you might decide it is worth it to have the possible intrusion (and remember- it isn't illegal because we agree to it in the installation process). Ever notice ads popping up as you browse that seem especially relevant to recent conversations you have had? You're not paranoid. There is a reason for that. Consider what you say near your phone-- all sorts of private things-- credit card numbers, your hopes and fears...is it ok for the apps to have that info? I know people who have gone back to flip phones-- they don't have those worries. (See: https://www.vice.com/en_uk/article/wjbzzy/your-phone-is-listening-and-its-not-paranoia)
Home automation speakers/microphones/cameras
(Alexa Cortana Siri Echo and more)
They are listening and watching. Can they substitute for a traditional security system without being intrusive? For my home-- I don't want to leave it up to facial recognition or voice matching or loud noises tripping analysis by an internet company to decide if police need to come. It is outside of my comfort range. I would rather get up and tap a button on the keypad to arm the system or punch my code to disarm it than vocalize my commands. I would rather not have video analyzed to determine if there is a visitor in my home.
Having that kind of information-- our conversations, our associates, our schedules-- allows one to make all sorts of assumptions-- and cause all sorts of actions or responses. I read "1984" and I don't want to live in that world.
Many innovations sound kind of slick, but I think it is still true that security is best when you actually do have to think about it. Having your system disarm when you arrive at the door without doing anything because your phone is in your pocket on the doorstep? What if it isn't in YOUR pocket? I could go on with the hypothetical situations, but I'll stop here. I love technology and I am cautious about it. You should be cautious too.